What are all metric measurements composed of?
Metric prefix and a basic unit of measure
What is the most commonly used temperature scale in the
scientific community?
Celsius or Centigrade
The nucleus of an
...
What are all metric measurements composed of?
Metric prefix and a basic unit of measure
What is the most commonly used temperature scale in the
scientific community?
Celsius or Centigrade
The nucleus of an atom contains or is made up of which of the
following?
Protons and neutrons
What is an atom that has a positive charge called?
A cation
In the periodic table, what are the rows called?
Periods
What is the atomic number?
Number of protons
Which of the following describes the atomic mass?
Average mass of that element's isotopes
Chemical equations are written in which manner?
Reactants -> Products
What is the charge on potassium in the compound KCl?
+1
A catalyst is a substance that accelerates a reaction by which of
the following?
Finding an alternate pathway for a reaction that requires less
energy
Percent concentration of a solution is expressed as which of the
following?
Parts per 100 parts
What will one liter of a molar solution of any element contain?
The atomic mass in grams of that element
Chemical bonding is the bonding of which of the following?
One atom to another atom
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Which of the following describes an ionic bond?
It does not share electrons
What is the concentrationof 58.5 g of NaCl in 2 L of solution
(atomic weights of each elements are as follows: Na=23g/mol,
Cl=35.5g/mol)?
0.5 mol NaCl
In a redox reaction, which of the following describes reduction?
It is the gain of electrons
What are acids?
Hydrogen donors
What is a benefit of water's ability to make hydrogen bonds?
High specific heat
What are bases or alkaline solutions?
Hydrogen acceptors
Chemical reactions in living systems proceed along catabolic
pathways, and there tends to be an increase in which of the
following?
Entropy
What is a pH of 7?
Neutral
Which is the correct way to write Iodine (I) with an atomic mass
of 131?
I^131, I131, 131^I
What is the correct formula for magnesium chloride?
MgCl2
What is the weakest of all intermolecular forces?
Dispersion
Beta radiation is the emission of which of the following?
An electron
Which of the following describes carbohydrates?
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